791374172741 has 4 divisors (see below), whose sum is σ = 794770628652. Its totient is φ = 787977716832.

The previous prime is 791374172713. The next prime is 791374172761. The reversal of 791374172741 is 147271473197.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 446552716516 + 344821456225 = 668246^2 + 587215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-791374172741 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791374172761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1698227606 + ... + 1698228071.

It is an arithmetic number, because the mean of its divisors is an integer number (198692657163).

Almost surely, 2^791374172741 is an apocalyptic number.

It is an amenable number.

791374172741 is a deficient number, since it is larger than the sum of its proper divisors (3396455911).

791374172741 is a wasteful number, since it uses less digits than its factorization.

791374172741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3396455910.

The product of its digits is 2074464, while the sum is 53.

The spelling of 791374172741 in words is "seven hundred ninety-one billion, three hundred seventy-four million, one hundred seventy-two thousand, seven hundred forty-one".